where \(pl_{\theta }\)  is the Plancherel specialization sending the first powersum \(p_1\)  to \(\theta \)  and all the rest to 0. These are signed measures whose bulk and edge asymptotic behavior (as \(\theta \rightarrow \infty \) ) we analyze in detail. They are somewhat contrite analogues of the Poissonized Plancherel measure on partitions [1]}. Nevertheless, at least at the edge, the behavior these measures exhibit should be universal and common to all symplectic/orthogonal Schur measures having certain properties. We prove the following two theorems.
